AGES OF PREHISTORIC EARTHQUAKES REVEALED BY COSMOGENIC CL-36 IN A BEDROCK FAULT SCARP AT HEBGEN LAKE

Authors
ZREDA M NOLLER JS
Citation
M. Zreda et Js. Noller, AGES OF PREHISTORIC EARTHQUAKES REVEALED BY COSMOGENIC CL-36 IN A BEDROCK FAULT SCARP AT HEBGEN LAKE, Science, 282(5391), 1998, pp. 1097-1099
Citations number
23
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Science → ACNP
ISSN journal
00368075
Volume
282
Issue
5391
Year of publication
1998
Pages
1097 - 1099
Database
ISI
SICI code
0036-8075(1998)282:5391<1097:AOPERB>2.0.ZU;2-6
Abstract
Cosmogenic chlorine-36 reveals dates of the multiple prehistoric earth quakes that have produced a scarp on the Hebgen Lake fault. Apparent c hlorine-36 ages are stratigraphically correct, follow a predicted theo retical pattern, and produce geologically reasonable model ages of 24, 20, 7.0, 2.6, 1.7, and 0.4 thousand years ago. This result demonstrat es the feasibility of using cosmogenic chlorine-36 to extract paleoear thquake records from bedrock fault scarps.